> You can cut and past the name from the header of a post without reading it, and without typing it out.

Oh really. We are talking about four words here. So are we squinting or something, because you have to be illiterate to not read that incidentally.

> Adherence to the English convention of using the masculine grammatical gender for subjects of unknown sex/gender identity might bother some readers, but is only "sexist" by an understanding of sexism that trivializes the term and robs it of substantial meaning.

Oh brother. Nope, you're the one redefining. See the myriad examples of "avoiding sexist language" style guides. Just because someone isn't getting raped doesn't mean there's no sexism.